2.5×4.4×0.7 简便怎么算

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2.5×4.4×0.7 简便怎么算

2.5×4.4×0.7 简便怎么算
2.5×4.4×0.7 简便怎么算

2.5×4.4×0.7 简便怎么算
2.5×4×1.1×0.7
=10×0.77
=7.7

2.5×4.4×0.7
=2.5*（4+0.4）*0.7
=（2.5*4+2.5*0.4）*0.7
=（10+1）*0.7
=10*0.7+1*0.7
=7+0.7
=7.7

=2.5x(4+0.4)x0.7
=2.5x4x0.7+2.5x0.4x0.7
=7+0.7
=7.7如果帮到您。请采纳。谢谢

=2.5×4×0.7+2.5×0.4×0.7
=10x0.77+1x0.7
=7.7

=(10/4)*4*1.1*7/10
=1.1*7
=7.7

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